大直径预应力锚索在某深基坑支护中的应用
Application of Large-diameter Prestressed Anchors in a Deep Excavation Support
王润涛 1刘倩 1王美丽 1王瑞华 1庄倩男2
作者信息
- 1. 河北省水文工程地质勘查院(河北省遥感中心) 石家庄市 050021
- 2. 河钢大河能源环境科技有限公司 石家庄市 050000
- 折叠
摘要
深基坑支护工程一直都是建筑工程中的一项重要课题,基坑支护方式与施工的质量、社会效益和经济效益有直接的关系.该文以石家庄某大厦深基坑支护工程为例,阐述了大直径预应力锚索在石家庄地区桩锚式支护设计中的应用,与普通锚索相比可大大降低锚固段长度,优化锚固段末端受力小的劣势,降低锚索施工难度和工程造价,为桩锚式支护的应用推广提供了新的设计思路.
Abstract
Deep excavation support is always been an important subject in construction engineering,di-rectly impacting the quality,social and economic benefits of a project.This paper uses the deep excava-tion support project of a high-rise building as a case study to illustrate the application of large-diameter prestressed anchors in the pile-anchor support design in Shijiazhuang City.Compared with the ordinary anchors,it can reduce the length of anchoring section,optimize the disadvantages of small force at the end of anchoring section,lower the difficulties of anchorage construction,and reduce project costs.This ap-proach provides a new design perspective for the application and popularization of pile-anchorage system structure.
关键词
基坑支护设计/深基坑/桩锚式支护/大直径预应力锚索/二次注浆Key words
excavation support design/deep excavation/pile-anchor support/large-diameter prestressed anchor/secondary grouting引用本文复制引用
出版年
2024
NETL
NSTL
万方数据